That tank is really to new ti host corals. Didnt you jist put a "raw shrimp" in there last week? Slow yer roll. Let the tank mature a little. Those fish to start making waste. Is it cycled yet? Parameters such as Mag. And Alk. Unopened zoas could be a lot of things but this one seems easy. That tank will be a good one. Juat take your time. Know it sucks to see nada in an aquarium but its worse taking dead stuff out and throwing money at livestock that has not much chance of sustainability. Good luck
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